26. 4. 2013. Семинар: Александар Миковић


У петак 26. априла 2013. у 11 часова у сали 360 одржаће семинар

Александар Миковић
University of Lisbon, Portugal

Spin cube models of quantum gravity


We describe spin cube models of quantum gravity which are based on Poincare 2-group representations labeled by positive real numbers. Depending on how one imposes the General Relativity constraints, one can obtain a spin foam model with the edge-length constraints or a Regge model. The corresponding effective actions have classical limits which are given by the Regge action.